Sirius M54 Microfocuser

Helical Micro Focuser with M48 female thread on telescope side and M48 male thread on viewing/camera. Includes a 0.1mm scale for very precise focusing and 18mm focus travel

NOTE: Requires addtional M48 Spacer Ring 35mm (Product no. 125498) to enable the microfocuser to be used in a 2" fucuser unit.

Attach the appropriate T - Ring to the M48 male threaded side and your attached accessory (i.e. camera) stays in position when you turn the focusing as it is a non-rotating helical focuser.

Features of the Sirius 2" Helical Micro Focuser

For its size it is light weight: 270g
Focus travel: 18mm
Telescope side thread is M48 female (screw in M48 Spacer Ring 35mm here)